DTB123YU / DTB123YK / DTB123YS
Transistors
Digital transistors (built-in resistor)
DTB123YU / DTB123YK / DTB123YS
Features
1) Built-in bias resistors enable the
configuration of an inverter circuit
without connecting external input
resistors (see equivalent circuit).
2) The bias resistors consist of thin-
film resistors with complete isola-
tion to allow positive biasing of the
input. They also have the advan-
tage of almost completely eliminat-
ing parasitic effects.
3) Only the on / off conditions need to
be set for operation, making device
design easy.
External dimensions
(Unit : mm)
(1)
0.3
(3)
1.25
2.1
0.2
0.15
(2)
1.3
2.0
DTB123YU
0.65 0.65
ROHM : UMT3
EIAJ : SC-70
0.1Min.
(1) GND
(2) IN
(3) OUT
Each lead ha same dimensions
Abbreviated symbol : F52
2.9
±
0.2
1.9
±
0.2
0.95 0.95
(1)
(2)
1.6
+0.1
−0.1
2.8
±
0.2
0.7
0.9
DTB123YK
1.1
+
0.2
−
0.1
0.8
±
0.1
0~0.1
(3)
0.15
+0.1
−0.06
0.4
+0.1
−0.05
All terminals have same dimensions
0.3~0.6
ROHM : SMT3
EIAJ : SC-59
(1) GND
(2) IN
(3) OUT
Abbreviated symbol : F52
(15Min.)
0.45
+0.15
−0.05
Equivalent circuit
ROHM : SPT
EIAJ : SC-72
5
3Min.
Structure
PNP digital transistor
(Built-in resistor type)
DTB123YS
3
±
0.2
4
±
0.2
2
±
0.2
2.5
+0.4
−0.1
0.5
+0.15
0.45
−0.05
(1) GND
(2) OUT
(3) IN
(1) (2) (3)
R
1
OUT
IN
R
2
GND(
+
)
IN
GND(
+
)
OUT
R
1
=2.2kΩ
R
2
=10kΩ
Rev.C
1/3
Appendix
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document are no antiradiation design.
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical instruments,
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other
safety devices), please be sure to consult with our sales representative in advance.
About Export Control Order in Japan
Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control
Order in Japan.
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
Appendix1-Rev1.1
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